The 1975 Hesketh 308C F1 OW was a two-seat, open-wheel Formula One race car built by British constructor Hesketh Racing. It was notable for being the first Formula One car to feature a composite chassis, incorporating both carbon and Kevlar structures. The car was powered by a M19 3.0-litre Ford-Cosworth DFV V8 engine producing an estimated 400+ bhp, and it was propelled through a Hewland FT200 four-speed manual gearbox. The car's aerodynamics relied heavily on its wide, flat nose cone, low-slung seating arrangement, and distinctive oversized sidepods. Its suspension was made up of double wishbone setup all round, and utilised an unusual front-to-rear rocker arrangement, allowing for enhanced handling and efficient weight redistribution. Hovering above a set of 9-inch Firestone tyres was a wide variety of body panels to suit different track conditions, including a full-length sidepod, winglets in the vertically split front wing, an adjustable rear wing, and an adjustable rear wing endplate. All in all, the Hesketh 308C F1 OW had the potential to be a formidable race car when pushed to its limits. Its combination of lightweight chassis and 400+ bhp V8 engine, combined with its carefully designed aerodynamics and suspension system, made it one of the most ambitious designs of the mid-1970s.
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